UNITED S^I\\TES GEOLOGICAL SUIIVEY 



CllAKLES ]>. WAU;t)TT, DIRKCTOK 



THE 



CARBONIFEROUS AMMONOIDS OF AMERICA 



BY 



JAMKf-^ P'ERRIN SMITH 



•4S>' 



WASHINGTON 



G O V K K N M E N T P IJ I N T I N f J OFFICE 



1 !»(I3 



